#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<unistd.h>
#include<sys/types.h>
#include<sys/stat.h>
#include<fcntl.h>

const char* filename = "log.txt";

int main()
{
    printf("hello printf ");
    fprintf(stdout,"hello pfrintf ");
    const char* message = "hello write ";
    write(1,message,strlen(message));

    fork();

    return 0;
}